Union Semiconductor International Limited UM1530S-15
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.04 | $1.04 |
| 15+ | $0.24 | $3.60 |
| 25+ | $0.23 | $5.75 |
| 50+ | $0.22 | $11.00 |
| 100+ | $0.20 | $20.00 |
| N+ | $0.04 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Union Semiconductor International Limited |
| Product Series | UM1530 |
| Packaging | Tape & Reel (TR) | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 6V |
| Voltage - Output (Min/Fixed) | 1.5V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.33V @ 200mA |
| Current - Output | 300mA |
| Current - Quiescent (Iq) | 1.5 µA |
| Current - Supply (Max) | - |
| PSRR | 56dB ~ 42dB (100Hz ~ 1kHz) |
| Control Features | - |
| Protection Features | Over Current, Over Temperature |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-236-3, SC-59, SOT-23-3 |
| Supplier Device Package | SOT-23-3 |
| ROHS |
The UM1530S-15 is a fixed 1.5V low dropout linear regulator from Union Semiconductor, delivering up to 300mA. Its ultra-low 1.5µA quiescent current and 0.33V dropout at 200mA make it highly efficient for battery-powered devices. Housed in a compact SOT-23-3 package, it offers stable output with PSRR of 56dB at 100Hz, ideal for noise-sensitive portable electronics.
- Extended Battery Life: Ultra-low 1.5µA quiescent current minimizes standby power draw.
- High Efficiency: Low dropout voltage of 0.33V @ 200mA maximizes usable voltage range.
- Compact Design: SOT-23-3 package saves PCB space for miniaturized devices.
- Clean Output: PSRR of 56dB at 100Hz reduces input noise for sensitive loads.
Battery-Powered IoT Sensors
The 1.5V output and ultra-low 1.5µA quiescent current make it ideal for always-on sensor nodes, extending battery life significantly.
Portable Medical Devices
Stable 1.5V rail for low-power microcontrollers and analog front-ends in compact, battery-operated health monitors.
Wearable Electronics
The SOT-23-3 package and low dropout of 0.33V @ 200mA suit space-constrained wearables requiring efficient power conversion from a single Li-ion cell.
Reference Voltage Supply
Provides a clean, regulated 1.5V supply for precision ADC/DAC references, with PSRR of 56dB at 100Hz to minimize noise.
Energy Harvesting Modules
With only 1.5µA ground current, it preserves harvested energy, making it perfect for low-power energy harvesting applications.
- Q: What is the output voltage of the UM1530S-15?
- A: The fixed output voltage is 1.5V.
- Q: What is the maximum output current?
- A: It can deliver up to 300mA.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; refer to the datasheet.
- Q: What is the dropout voltage?
- A: Dropout voltage is 0.33V at 200mA load.
- Q: What is the quiescent current?
- A: The quiescent current is very low at 1.5µA.
- Q: What package is available?
- A: It comes in a SOT-23-3 package.
- Q: What is the output voltage of the UM1530S-15?
- A: The fixed output voltage is 1.5V.
- Q: What is the maximum output current?
- A: It can deliver up to 300mA.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; refer to the datasheet.
- Q: What is the dropout voltage?
- A: Dropout voltage is 0.33V at 200mA load.
- Q: What is the quiescent current?
- A: The quiescent current is very low at 1.5µA.
- Q: What package is available?
- A: It comes in a SOT-23-3 package.

UM1530S-15.pdf